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Debt Paydown Tool

Loan Prepayment Calculator 2026

See how extra EMI payments reduce total interest and shorten your loan term.

Disclaimer: Some loans charge prepayment penalties or apply extra payments in specific ways. Always check your contract before making a lump sum payment.
INR
%
years
INR

Total Interest Saved

₹76,922.62
Loan Closes In50 months
Months Saved10 months

Extra payments reduce the principal faster, which means less interest is charged in future months. The earlier you pay extra, the stronger the effect tends to be.

What the prepayment math is showing

Base EMI
₹32,240.85

The regular monthly payment without extra principal.

With Extra Payment
₹37,240.85

What you would pay each month if you add the extra amount.

Interest Without Prepayment
₹4,34,451.03

A benchmark for comparing the savings impact.

Financial & Tax Advice Disclaimer

This tool is provided strictly for educational, planning, and illustrative purposes. All figures, estimates, compounding formulas, and tax calculations are based on user input parameters and current mathematical models.

No Performance Guarantee & Liability: Output calculations do not guarantee future returns, exact bank interest payouts, market gains, or legal tax liability. Toolioz and its maintainers accept no legal or financial liability for investment losses, loan commitments, or tax penalties resulting from the use of this calculator.

Always consult a certified financial planner, registered investment advisor, or Chartered Accountant (CA) before taking financial action.

Debt Reduction Tips

Prepayment works best when the payment is applied directly to principal.

Why early payment matters

  • -Interest is charged on the remaining balance, so a smaller balance means less interest.
  • -Extra payments made early usually save more than the same amount paid later.

What to check first

  • -Confirm whether the lender charges a prepayment penalty.
  • -Check whether extra money reduces principal immediately or is simply held as an advance payment.

Good use cases

  • -Use a small extra EMI amount if you want to prepay without hurting cash flow.
  • -Use a larger lump sum if you have a bonus or other one-time windfall.
  • -Compare the savings with any investment alternative before deciding.
  • -Make sure you keep enough cash for emergencies after any prepayment.

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Frequently Asked Questions

Most banks automatically apply loan prepayments toward reducing the remaining loan tenure, keeping the monthly EMI the same. However, you can request your bank to keep the tenure same and reduce your monthly EMI instead.

As per RBI guidelines, banks and housing finance companies (HFCs) cannot charge prepayment penalties on floating-rate home loans granted to individual borrowers.

If your loan interest rate (e.g. 8.5%) is lower than expected long-term mutual fund returns (e.g. 12%), investing may yield higher net returns. However, prepayments guarantee a risk-free return equal to your loan interest rate.

Publisher notes · reviewed 10 September 2026

What prepayment changes in an amortizing loan

A prepayment reduces principal. The lender then either shortens the remaining tenure or lowers the EMI, according to the product rules. This page estimates interest saved under the model documented on the screen.

Why ₹1 extra is not linear

Interest is charged on outstanding principal. Paying ₹1 lakh in year two of a 20-year loan saves more remaining interest than the same ₹1 lakh in year eighteen, because more periods of interest were still ahead. Run both dates if you are deciding when to deploy a bonus.

Some lenders levy a prepayment charge on floating or fixed products. Subtract that fee from "interest saved" before calling the prepayment a win. RBI has restricted foreclosure charges on some floating-rate individual loans; the current circular beats a blog post.

Worked examples

  • EMI unchanged, tenure cut

    After a lump-sum prepayment, keeping EMI constant typically drops n. The remaining-interest figure should fall. If it does not, check that outstanding principal and remaining months were entered as of the prepayment date, not origination.

Limits of this page

  • Does not reprice a floating rate after prepayment.
  • Does not model moratoriums or skipped EMIs.

Sources